/**
 * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */
/**
 * @module image/image/insertimagecommand
 */
import { Command } from 'ckeditor5/src/core';
import { logWarning, toArray } from 'ckeditor5/src/utils';
/**
 * Insert image command.
 *
 * The command is registered by the {@link module:image/image/imageediting~ImageEditing} plugin as `insertImage`
 * and it is also available via aliased `imageInsert` name.
 *
 * In order to insert an image at the current selection position
 * (according to the {@link module:widget/utils~findOptimalInsertionRange} algorithm),
 * execute the command and specify the image source:
 *
 * ```ts
 * editor.execute( 'insertImage', { source: 'http://url.to.the/image' } );
 * ```
 *
 * It is also possible to insert multiple images at once:
 *
 * ```ts
 * editor.execute( 'insertImage', {
 * 	source:  [
 * 		'path/to/image.jpg',
 * 		'path/to/other-image.jpg'
 * 	]
 * } );
 * ```
 *
 * If you want to take the full control over the process, you can specify individual model attributes:
 *
 * ```ts
 * editor.execute( 'insertImage', {
 * 	source:  [
 * 		{ src: 'path/to/image.jpg', alt: 'First alt text' },
 * 		{ src: 'path/to/other-image.jpg', alt: 'Second alt text', customAttribute: 'My attribute value' }
 * 	]
 * } );
 * ```
 */
export default class InsertImageCommand extends Command {
    /**
     * @inheritDoc
     */
    constructor(editor) {
        super(editor);
        const configImageInsertType = editor.config.get('image.insert.type');
        if (!editor.plugins.has('ImageBlockEditing')) {
            if (configImageInsertType === 'block') {
                /**
                 * The {@link module:image/imageblock~ImageBlock} plugin must be enabled to allow inserting block images. See
                 * {@link module:image/imageconfig~ImageInsertConfig#type} to learn more.
                 *
                 * @error image-block-plugin-required
                 */
                logWarning('image-block-plugin-required');
            }
        }
        if (!editor.plugins.has('ImageInlineEditing')) {
            if (configImageInsertType === 'inline') {
                /**
                 * The {@link module:image/imageinline~ImageInline} plugin must be enabled to allow inserting inline images. See
                 * {@link module:image/imageconfig~ImageInsertConfig#type} to learn more.
                 *
                 * @error image-inline-plugin-required
                 */
                logWarning('image-inline-plugin-required');
            }
        }
    }
    /**
     * @inheritDoc
     */
    refresh() {
        const imageUtils = this.editor.plugins.get('ImageUtils');
        this.isEnabled = imageUtils.isImageAllowed();
    }
    /**
     * Executes the command.
     *
     * @fires execute
     * @param options Options for the executed command.
     * @param options.source The image source or an array of image sources to insert.
     * See the documentation of the command to learn more about accepted formats.
     */
    execute(options) {
        const sourceDefinitions = toArray(options.source);
        const selection = this.editor.model.document.selection;
        const imageUtils = this.editor.plugins.get('ImageUtils');
        // In case of multiple images, each image (starting from the 2nd) will be inserted at a position that
        // follows the previous one. That will move the selection and, to stay on the safe side and make sure
        // all images inherit the same selection attributes, they are collected beforehand.
        //
        // Applying these attributes ensures, for instance, that inserting an (inline) image into a link does
        // not split that link but preserves its continuity.
        //
        // Note: Selection attributes that do not make sense for images will be filtered out by insertImage() anyway.
        const selectionAttributes = Object.fromEntries(selection.getAttributes());
        sourceDefinitions.forEach((sourceDefinition, index) => {
            const selectedElement = selection.getSelectedElement();
            if (typeof sourceDefinition === 'string') {
                sourceDefinition = { src: sourceDefinition };
            }
            // Inserting of an inline image replace the selected element and make a selection on the inserted image.
            // Therefore inserting multiple inline images requires creating position after each element.
            if (index && selectedElement && imageUtils.isImage(selectedElement)) {
                const position = this.editor.model.createPositionAfter(selectedElement);
                imageUtils.insertImage({ ...sourceDefinition, ...selectionAttributes }, position);
            }
            else {
                imageUtils.insertImage({ ...sourceDefinition, ...selectionAttributes });
            }
        });
    }
}
